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The Mack R series (also known as the Mack Model R) is a series of trucks that was manufactured by Mack Trucks from 1966 to 2005. The successor of the Mack B series , [ 2 ] the R was a heavy-duty truck (Class 8) with a conventional (bonneted) cab configuration.
The B-series was the first Mack truck produced with a diesel engine, introducing the Mack-produced Thermodyne inline-6 in 1953. [1] During 1966, Mack replaced the B-series with the Mack R-series, which lasted into the 21st century. [3] [4] [5] In total, 126,745 examples of the B-series were produced over 13 years. [6]
1936: The Mack E series introduced. Mack Jr trucks introduced. 1938: Mack trucks is the first company to produce its own heavy-duty diesel engines. World War II: Mack trucks were used by the military in various capacities, and the company built many heavy-duty trucks to help the allied forces win the day.
G series; D series; N series; W series; H series; F series; 1976 Mack F-700 in Kentucky. WR - Cruise-Liner series; Jones Transport 1978 Mack Cruise-Liner. MH - Ultra-Liner series; MS - Mid-Liner series; MB series; MC / MR series; TERRAPRO chassis MRU/LEU series
The Mack Super-Liner is a model line of Class 8 trucks produced by Mack Trucks.Produced in North America from 1977 to 1993, [1] the model line was a conventional-cab tractor configured primarily for highway and vocational applications, serving as the flagship conventional of the Mack product line in North America.
In 1962 they took part in program to retrofit some of the series with a Mack ENDT 673 673 cu in (11.0 L) turbocharged inline 6 cylinder diesel engine developing 210 hp (160 kW) at 2100 rpm. Inside two years, after 2,500 conversions, the Army standardized the Continental LDS-465-1A, a 478 cu in (7.8 L) turbocharged inline 6 cylinder multifuel ...
Gasoline engines up to WWII were often valve in block design (L-head), during the war more overhead valve (ohv) engines were used, and after the war all new engines (except 1 F-head and 1 Overhead camshaft (ohc)) have been ohv. All diesel engines have ohv, they can be naturally aspired, supercharged (SC), or turbocharged (TC).
The LR is available with a Mack MP7 diesel, Cummins Westport natural gas engine, and since 2020, an all-electric drivetrain. [3] [4] The Mack MP7 is the base engine in the LR. It is a 659 cubic inches (10.8 L) overhead cam turbocharged inline six-cylinder diesel engine. It develops 325 to 425 horsepower (242 to 317 kW) and 1,260 to 1,560 pound ...